Improvement in watchmen s time-detecters



W. IMI-IAEUSER.

WATC'HMENS TIME-DETECTOR.

Patented Jan. 25,1876.

N1 PETERS, PHOTO-LITHOGRAPHER. WASHXNGTDN. D CV UNIIIEE STATES PATENTMDFEIQE,

WILLIAM IMHAEUsEE, OE BROOKLYN, NEW YOEK, AssIeNOE rro ELIsE IMEAEUSEE, OE sAME PLAGE.

IMPROVEMENT IN WATCHMENS TIME-DETECTERS.

Specification forming part of Letters Patent No. 172,630, dated January 25,1876; application filed January 7, 1876.

To alt whom it 'may concern:

Be it known that I, WILLIAM IMHAEUSER, of Brooklyn, Kings county, New York, have invented an Improved Watchmans Time-Detecter, of which the following is a specification:

Figure 1 is a top or plan view of my improved watchmans timedetecter, showing the lid folded open. Fig. 2 is a vertical section ofthe same closed, the line c c, Fig. l, indicating the plane of section through the lid. Figs. 3 and 4 are plan views of two of the keys used therein. A

Similar letters of reference indicate corresponding parts in all the figures.

This invention has for its object to improve and simplify watchmens time-detecters of the class containing a rotary dial or paper disk; and consists more particularly in placing within the folding lid of the instrument a hammer or 'pointing or marking instrument, which is capable of vibrating in two directions, as hereinafter more fully described.

Similar devices have been previously used in the bodies of the time-detecters beneath the rotating dials or disks; but I have found that by placing these'double-vibrating marking devices into the lids above the dials or disks the construction of the time-detecter is materially simplified, and that the parts are readily inspected and exposed to view by merely opening the lid, and are, therefore, also less liable to interfere with the clock-work from which the dials or disks receive their rotary motion.

In the drawing, the letter A represents the body or case of my improved time-detecter, and B the lid or cover of the same. The lid is usually hinged to the body, or otherwise so connected that it can be folded open, as in Fig. l, or taken oil' to expose the paper dial or disk G to view. This paper dial or diskis, as usually, removable, and is for use secured within the shell A upon a rotary plate or holder, to which rotary motion is imparted by clock work concealed within the shell. When the lid is closed down upon the shell, as in Fig. 2, it is locked thereto by a suitable lock, and can be unlocked by a suitable key. D is a lever pivoted to the under side of the lid B by a vertical pin, a, and connected with a spring or vibrating hammer, b. The lever D is capable of vibrating in a horizontal direction around the pin c, while the spring or hammer bis capable of being sprung or vibrated in a vertical direction. The spring or hammer is connected with the lever D in such a manner as to follow it in its horizontal vibration. Ilhe spring or hammer b carries a projecting pin, pointer, or marker, d, Wherewith to pierce, indent, or mark the paper dial or disk from the outside inward. Aseries of keys, E E, are employed to operate the lever D and the spring or hammer b. Each key of the series pertaining to one instrument has a bit, c, diifering in length from the bit c of every other key of,V the same series, and has also a shoulder, f, as shown. The shoulderl f of one key is as far from the bit of such key as the shoulder f of every other key ofthe series is from its respective bit. Yet, the bits varying in length, it follows that the distance between the shoulders and ends of the keys varies in all the keys. The lid B is perforated to form a key-hole, as at g, through which the keys can be successively introduced. Each key is pushed in until its shoulder f strikes the lid, which determines the distance to which the key can be introduced. The key upon being inserted strikes the lever D with its bit e, and thereby vibrates it in a horizontal direction, and compresses a spring, h, by which the lever is normally held Dear to the key-hole. The longer the bit the farther Will the lever D, and with it the spring or hammer b, be vibrated horizontally. As soon as the key has been properly introduced it is turned onits shaft, so that its bit will come in contact with the spring or hammer b, and thereby vibrate the latter vertically, to throw or press its pointer or marker d into contact with the paper dial or disk G. A mark is thus made in the dial, indicating the time the key was introduced, and by its distance from the center of the dial or disk, the key with which the mark was made.

The paper dial, when used, may be subdivided by radial curves, and also by concentric rings, iu the usual manner, and as indicated in Fig.,1. When, in place of the paper dial, a blank paper disk is used, a row of types ing lever D, and with the marking spring r or dies will have to be secured in the ease A hammer b, said lever being pivoted to the lid directly beneath the disk, to affect the paper B,substantially as herein shown and described. when the saine is pressed upon them by the marker or pointer d. WILLIAM IMHAEUSER.

I claim as my invention- Witnesses: In a Watehmans time-detecter, the eombi- ERNEST C. WEBB,

nation of the lid or cover B with the vibrat- F. V. BRIESEN. 

